As far as I know you upload the SVG via the website not the game. There is also a file size limit too.
Uploading your custom Vinyl to the game is a pain in the f*cking ass. I haven't been able to do it so far.
I am going to have to wait a few weeks until someone decides to upload a tutorial on youtube.
I will be trying it soon I am just stuck in Creator right now...
I have been trying to use the website's uploader all day without success. If I manage to get a .svg file that's less than 15kb It will still say: ".svg file not supported or some sh*t like that"
I can't even access the uploader yet
What software are you creating your SVG files in?
I just used converters online to convert from .png to .svg and it's not working (Even if the size is smaller than the limit)
I think that forcing players to use .svg files is a sh*t move. Most people are not that skilfull with PC's to make .svg files. They should have sticked with .png/.jpg or make a tool free to download to convert your stuff suitable for GT.
I mean, i am a License Plate fan and i like to put weird plates on my cars just for the fun of it.
I can do a lot of plates in the editor like those: